Improvement in hydrants



UNITED STATES PATENT. OFFICE.

JOHN 0. comma, or BUFFALO, NEW YORK.

IMPROVEMENT IN HVDRANTS.

Specification forming part of Letters Patent No. 170,238, dated November 23, 1875 application filed March 15, 1875.

To all whom it may concern:

Be it known that I, JonN O. (loNNoR, of the city of Buffalo, in Erie county and State of New York, have invented certain new and useful Improvements in Hydrants, of which the following is a specification:

This invention relates to that kind of nonfreezing hydrants in which the jacket and the valve-case and outlet-pipe of the hydrant are permanently connected at the bottom.

My improvement consists in the employment of a stuffing-box around the outlet-pipe of the hydrant where it passes through the upper end of the jacket or outer casing, so that a tight joint will at all times be maintained between them, though they may expand unequally under variations of temperature.

Figure I in the accompanying drawings represents a vertical section through the body of the hydrant and partof the outlet-pipe; Fig. II, a section through liueX X, Fig. I; Fig. III, a top or plan view of the hydrant, showing the discharge-nozzles, of which there may be one or more. Fig. IV is a section through line Z Z, Fig. I.

A in said drawings represents the body or outer casing of the hydrant. It is made tapering from the bottom to the top, as shown, and of one or more pieces, which are screwed together, or held by means of a flange and bolts. B represents that part which connects it with the branch leading to the street-main. O is the outlet-pipe. It is made of wroughtiron gas-pipe, and is connected to the nozzlehead by a screw or other equivalent means, and permanently fastened to a brass valveseat, D, which is arranged as shown, so that it can be unscrewed from the part E, and taken out when necessary to repair it, or for other purposes, without disturbing the case A or its connection with the street-main. F represents a stuffing-box for producing a tight joint between the pipe (J and case A. This allows pipe 0 to slip according to the difference in expansion between it and said case A. Gr represents the nozzle-head. It is connected permanently to the pipe 0, and is arranged for one or more nozzles, G. H is a stuffing-box for forming a tightjoint between the valve-rod I and head G. J is a handle for turning said valve-rod. K is the valve, which ismade of leather in the usual way, and is fastened to the rod 1. The valve is opened or closed in the ordinary manner by the handle J and by means of the screw on said rod I, the valve moving up or down without turning. L represents the waste-valve, which also operates in a manner similar to ordinary waste-valves, by opening the said valve when the main valve K is shut, and closing it when the same is open. M represents a small wrought-iron gas-pipe, bent and connected at the top, as shown, so that a jet of steam may be forced into and out of the case A, as indicated by the arrows, if the water in the pipe 0 should be frozen. A is an opening, through which steam may be fOlOQtEIJIHtO a jacket around the branch pipe leading to the main, if necessary.

I claim- The outlet-pipe and jacket or outer casing, rigidly connected at the bottom through the valve-case, in combination with a stuffing-box encircling the outlet pipe where it passes through the upper end of the jacket, substantially as and for the purpose set forth.

- JOHN O. CONNOR. Witnesses:

JAMES SANGSTER, AMos W. SANGSTER. 

